High resolution mouse cardiac study usuing Tc-99m labeled MIBI. Additionally, the mouse was injected straight I-123 showing up in the thyroids. All combinations of fusions of CT with Tc-99m- and I-123- SPECT are shown here.
Marked with a cross is the mouse heart.
Please note in particular, that the energy resolution of the NanoSPECT is good enough to resolve Tc-99m (140.5 keV) and I-123 (159.0 keV) while still providing the high sensitivity.